V. V. . Kurta, “Behaviour of solutions of quasilinear elliptical equations of the second order in nonrestricted regions”, Ukr. Mat. Zhurn., vol. 44, no. 2, pp. 279–283, Feb. 1992, Accessed: Feb. 17, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/7843